These are the size for the ClayShare Workshop from July 2023
https://www.clayshare.com/products/from-form-to-function
The is the size puki I use to make the teapot I that I demonstrated in my Online Teapot Demo workshop on Feb 11th. The recording of the class is now available here
https://earthtoannie.ecwid.com/Downloadable-Recordings-of-Classes-c127350752
these work well for a circular bottom measuring 5.75 inches in diameter